Populus alba

A. A. Reznicek leaves on vigorous shoots
B. S. Walters underside of leaves
R. W. Smith
R. Schipper
R. Schipper
R. Schipper
R. Schipper
R. Schipper lower trunk
R. Schipper mature trunk
R. Schipper mid-trunk
R. Schipper sprout twig
R. Schipper sprouts